mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-21 09:06:37 +08:00
Ivan van Heerden
1f2a30d7ca
Expose an 'ISession' interface as abstraction to ease unit testing. Breaking changes are kept to minimal impact, but some changes maybe required to use ISession objects instead of Session. Note: ISessionClientMethods is hand created, not yet by ModelCompiler
763 lines
27 KiB
C#
763 lines
27 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2020 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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using Opc.Ua;
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using Opc.Ua.Client;
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namespace Opc.Ua.Client.Controls
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{
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/// <summary>
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/// Displays the results from a history read operation.
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/// </summary>
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public partial class SubscribeDataListViewCtrl : UserControl
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{
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#region Constructors
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/// <summary>
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/// Constructs a new instance.
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/// </summary>
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public SubscribeDataListViewCtrl()
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{
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InitializeComponent();
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m_PublishStatusChanged = new EventHandler(OnPublishStatusChanged);
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ResultsDV.AutoGenerateColumns = false;
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ImageList = new ClientUtils().ImageList;
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m_dataset = new DataSet();
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m_dataset.Tables.Add("Requests");
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m_dataset.Tables[0].Columns.Add("MonitoredItem", typeof(MonitoredItem));
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m_dataset.Tables[0].Columns.Add("Icon", typeof(Image));
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m_dataset.Tables[0].Columns.Add("NodeAttribute", typeof(string));
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m_dataset.Tables[0].Columns.Add("IndexRange", typeof(string));
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m_dataset.Tables[0].Columns.Add("DataEncoding", typeof(QualifiedName));
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m_dataset.Tables[0].Columns.Add("MonitoringMode", typeof(MonitoringMode));
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m_dataset.Tables[0].Columns.Add("SamplingInterval", typeof(double));
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m_dataset.Tables[0].Columns.Add("QueueSize", typeof(uint));
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m_dataset.Tables[0].Columns.Add("DiscardOldest", typeof(bool));
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m_dataset.Tables[0].Columns.Add("Filter", typeof(MonitoringFilter));
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m_dataset.Tables[0].Columns.Add("OperationStatus", typeof(StatusCode));
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m_dataset.Tables[0].Columns.Add("DataValue", typeof(DataValue));
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m_dataset.Tables[0].Columns.Add("DataType", typeof(string));
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m_dataset.Tables[0].Columns.Add("Value", typeof(Variant));
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m_dataset.Tables[0].Columns.Add("StatusCode", typeof(StatusCode));
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m_dataset.Tables[0].Columns.Add("SourceTimestamp", typeof(string));
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m_dataset.Tables[0].Columns.Add("ServerTimestamp", typeof(string));
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ResultsDV.DataSource = m_dataset.Tables[0];
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}
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#endregion
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#region Private Fields
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private DataSet m_dataset;
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private Session m_session;
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private Subscription m_subscription;
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private DisplayState m_state;
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private EditComplexValueDlg m_EditComplexValueDlg;
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private EventHandler m_PublishStatusChanged;
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#endregion
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#region Stage Enum
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/// <summary>
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/// The diplays state.
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/// </summary>
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private enum DisplayState
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{
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EditItems,
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ApplyChanges,
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ViewUpdates
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}
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#endregion
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#region Public Members
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/// <summary>
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/// Changes the session used.
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/// </summary>
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public void ChangeSession(Session session)
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{
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if (!Object.ReferenceEquals(session, m_session))
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{
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m_session = session;
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if (m_subscription != null)
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{
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m_subscription.PublishStatusChanged -= m_PublishStatusChanged;
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m_subscription.FastDataChangeCallback = null;
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m_subscription = null;
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}
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if (m_session != null)
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{
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// find new subscription.
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foreach (Subscription subscription in m_session.Subscriptions)
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{
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if (Object.ReferenceEquals(subscription.Handle, this))
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{
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m_subscription = subscription;
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m_subscription.PublishStatusChanged += m_PublishStatusChanged;
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m_subscription.FastDataChangeCallback = OnDataChange;
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break;
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}
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}
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// update references to monitored items.
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if (m_subscription != null)
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{
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foreach (MonitoredItem monitoredItem in m_subscription.MonitoredItems)
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{
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DataRow row = (DataRow)monitoredItem.Handle;
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row[0] = monitoredItem;
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if (m_EditComplexValueDlg != null)
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{
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MonitoredItem oldMonitoredItem = (MonitoredItem)m_EditComplexValueDlg.Tag;
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if (Object.ReferenceEquals(oldMonitoredItem.Handle, monitoredItem.Handle))
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{
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m_EditComplexValueDlg.Tag = monitoredItem;
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}
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}
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}
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}
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}
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if (m_EditComplexValueDlg != null)
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{
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m_EditComplexValueDlg.ChangeSession(session);
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}
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}
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}
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/// <summary>
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/// Returns true if the control has an active subscription assigned.
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/// </summary>
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public bool HasSubscription
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{
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get
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{
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return m_subscription != null;
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}
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}
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/// <summary>
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/// Sets the subscription used with the control.
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/// </summary>
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public void SetSubscription(Subscription subscription)
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{
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if (m_subscription != null)
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{
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m_subscription.PublishStatusChanged -= m_PublishStatusChanged;
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m_subscription.FastDataChangeCallback = null;
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m_subscription = null;
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}
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m_session = null;
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m_subscription = subscription;
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m_subscription.DisableMonitoredItemCache = true;
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m_subscription.PublishStatusChanged += m_PublishStatusChanged;
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m_subscription.FastDataChangeCallback = OnDataChange;
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m_dataset.Tables[0].Rows.Clear();
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if (m_subscription != null)
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{
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m_session = subscription.Session as Session;
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m_subscription.Handle = this;
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}
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}
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/// <summary>
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/// Adds the monitored items to the subscription.
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/// </summary>
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public void AddItems(params ReadValueId[] itemsToMonitor)
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{
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if (m_subscription == null)
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{
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throw new ServiceResultException(StatusCodes.BadNoSubscription);
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}
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if (itemsToMonitor != null)
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{
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SetDisplayState(DisplayState.EditItems);
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for (int ii = 0; ii < itemsToMonitor.Length; ii++)
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{
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if (itemsToMonitor[ii] == null)
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{
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continue;
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}
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DataRow row = m_dataset.Tables[0].NewRow();
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MonitoredItem monitoredItem = new MonitoredItem(m_subscription.DefaultItem);
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monitoredItem.StartNodeId = itemsToMonitor[ii].NodeId;
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monitoredItem.AttributeId = itemsToMonitor[ii].AttributeId;
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monitoredItem.IndexRange = itemsToMonitor[ii].IndexRange;
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monitoredItem.Encoding = itemsToMonitor[ii].DataEncoding;
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monitoredItem.Handle = row;
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m_subscription.AddItem(monitoredItem);
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UpdateRow(row, monitoredItem);
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m_dataset.Tables[0].Rows.Add(row);
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}
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}
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}
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/// <summary>
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/// Whether the next command does anything.
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/// </summary>
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public bool CanCallNext
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{
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get
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{
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return m_state != DisplayState.ViewUpdates;
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}
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}
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/// <summary>
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/// Whether the back command does anything.
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/// </summary>
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public bool CanCallBack
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{
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get
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{
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return m_state != DisplayState.EditItems;
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}
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}
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/// <summary>
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/// Moves the grid to the next state.
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/// </summary>
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public void Next()
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{
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if (m_state == DisplayState.ViewUpdates)
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{
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return;
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}
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SetDisplayState(++m_state);
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// clear any selection.
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foreach (DataGridViewRow row in ResultsDV.Rows)
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{
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row.Selected = false;
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}
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if (m_subscription != null)
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{
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// apply any changes.
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if (m_state == DisplayState.ApplyChanges)
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{
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m_subscription.ApplyChanges();
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foreach (DataRow row in m_dataset.Tables[0].Rows)
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{
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MonitoredItem monitoredItem = (MonitoredItem)row[0];
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UpdateRow(row, monitoredItem.Status);
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}
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}
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}
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}
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/// <summary>
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/// Moves the grid back to the edit items state.
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/// </summary>
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public void Back()
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{
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if (m_state == DisplayState.EditItems)
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{
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return;
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}
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SetDisplayState(DisplayState.EditItems);
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// clear any selection.
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foreach (DataGridViewRow row in ResultsDV.Rows)
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{
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row.Selected = false;
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// revert to specified parameters.
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DataRowView source = row.DataBoundItem as DataRowView;
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MonitoredItem monitoredItem = (MonitoredItem)source.Row[0];
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UpdateRow(source.Row, monitoredItem);
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}
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}
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#endregion
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#region Private Methods
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/// <summary>
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/// Sets the display state for the control.
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/// </summary>
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private void SetDisplayState(DisplayState state)
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{
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m_state = state;
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switch (m_state)
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{
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case DisplayState.EditItems:
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{
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SamplingIntervalCH.Visible = true;
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QueueSizeCH.Visible = true;
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DiscardOldestCH.Visible = true;
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FilterCH.Visible = true;
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OperationStatusCH.Visible = false;
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DataTypeCH.Visible = false;
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ValueCH.Visible = false;
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StatusCodeCH.Visible = false;
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SourceTimestampCH.Visible = false;
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ServerTimestampCH.Visible = false;
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break;
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}
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case DisplayState.ApplyChanges:
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{
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SamplingIntervalCH.Visible = true;
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QueueSizeCH.Visible = true;
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DiscardOldestCH.Visible = true;
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FilterCH.Visible = false;
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OperationStatusCH.Visible = true;
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DataTypeCH.Visible = false;
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ValueCH.Visible = false;
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StatusCodeCH.Visible = false;
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SourceTimestampCH.Visible = false;
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ServerTimestampCH.Visible = false;
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break;
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}
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case DisplayState.ViewUpdates:
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{
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SamplingIntervalCH.Visible = false;
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QueueSizeCH.Visible = false;
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DiscardOldestCH.Visible = false;
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FilterCH.Visible = false;
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OperationStatusCH.Visible = false;
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DataTypeCH.Visible = true;
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ValueCH.Visible = true;
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StatusCodeCH.Visible = true;
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SourceTimestampCH.Visible = true;
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ServerTimestampCH.Visible = true;
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break;
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}
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}
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}
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/// <summary>
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/// Updates the row with the monitored item.
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/// </summary>
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private void UpdateRow(DataRow row, MonitoredItem monitoredItem)
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{
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row[0] = monitoredItem;
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row[1] = ImageList.Images[ClientUtils.GetImageIndex(monitoredItem.AttributeId, null)];
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row[2] = m_session.NodeCache.GetDisplayText(monitoredItem.StartNodeId) + "/" + Attributes.GetBrowseName(monitoredItem.AttributeId);
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row[3] = monitoredItem.IndexRange;
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row[4] = monitoredItem.Encoding;
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row[5] = monitoredItem.MonitoringMode;
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row[6] = monitoredItem.SamplingInterval;
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row[7] = monitoredItem.QueueSize;
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row[8] = monitoredItem.DiscardOldest;
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row[9] = monitoredItem.Filter;
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}
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/// <summary>
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/// Updates the row with the monitored item status.
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/// </summary>
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private void UpdateRow(DataRow row, MonitoredItemStatus status)
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{
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row[5] = status.MonitoringMode;
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row[6] = status.SamplingInterval;
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row[7] = status.QueueSize;
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row[8] = status.DiscardOldest;
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row[9] = status.Filter;
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if (ServiceResult.IsBad(status.Error))
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{
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row[10] = new StatusCode(status.Error.Code);
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}
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else
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{
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row[10] = new StatusCode();
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}
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}
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/// <summary>
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/// Updates the row with the data value.
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/// </summary>
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private void UpdateRow(DataRow row, MonitoredItemNotification notification)
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{
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DataValue value = notification.Value;
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row[11] = value;
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if (value != null)
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{
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row[1] = ImageList.Images[ClientUtils.GetImageIndex(Attributes.Value, value.Value)];
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row[12] = (value.WrappedValue.TypeInfo != null) ? value.WrappedValue.TypeInfo.ToString() : String.Empty;
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row[13] = value.WrappedValue;
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row[14] = value.StatusCode;
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row[15] = value.SourceTimestamp.ToLocalTime().ToString("hh:mm:ss.fff");
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row[16] = value.ServerTimestamp.ToLocalTime().ToString("hh:mm:ss.fff");
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}
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}
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/// <summary>
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/// Gets the display string for the subscription status.
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/// </summary>
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private string GetDisplayString(Subscription subscription)
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{
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StringBuilder buffer = new StringBuilder();
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buffer.Append((subscription.CurrentPublishingEnabled) ? "Enabled" : "Disabled");
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buffer.Append(" (");
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buffer.Append(subscription.CurrentPublishingInterval);
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buffer.Append("ms/");
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buffer.Append(subscription.CurrentKeepAliveCount);
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buffer.Append("/");
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buffer.Append(subscription.CurrentLifetimeCount);
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buffer.Append("}");
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return buffer.ToString();
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}
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#endregion
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#region Event Handlers
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private void OnPublishStatusChanged(object sender, EventArgs e)
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{
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if (!Object.ReferenceEquals(sender, m_subscription))
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{
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return;
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}
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if (this.InvokeRequired)
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{
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this.BeginInvoke(m_PublishStatusChanged, sender, e);
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return;
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}
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try
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{
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if (m_subscription.PublishingStopped)
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{
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SubscriptionStateTB.Text = "STOPPED";
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SubscriptionStateTB.ForeColor = Color.Red;
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}
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else
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{
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SubscriptionStateTB.Text = GetDisplayString(m_subscription);
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SubscriptionStateTB.ForeColor = Color.Empty;
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}
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SequenceNumberTB.Text = m_subscription.SequenceNumber.ToString();
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LastNotificationTB.Text = m_subscription.LastNotificationTime.ToLocalTime().ToString("hh:mm:ss");
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}
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catch (Exception exception)
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{
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ClientUtils.HandleException(this.Text, exception);
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}
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}
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private void OnDataChange(Subscription subscription, DataChangeNotification notification, IList<string> stringTable)
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{
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if (!Object.ReferenceEquals(subscription, m_subscription))
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{
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return;
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}
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if (this.InvokeRequired)
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{
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this.BeginInvoke(new FastDataChangeNotificationEventHandler(OnDataChange), subscription, notification, stringTable);
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return;
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}
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try
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{
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foreach (MonitoredItemNotification itemNotification in notification.MonitoredItems)
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{
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MonitoredItem monitoredItem = subscription.FindItemByClientHandle(itemNotification.ClientHandle);
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if (monitoredItem == null)
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{
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continue;
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}
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DataRow row = (DataRow)monitoredItem.Handle;
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if (row.RowState == DataRowState.Detached)
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{
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continue;
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}
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UpdateRow(row, itemNotification);
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if (m_EditComplexValueDlg != null && Object.ReferenceEquals(m_EditComplexValueDlg.Tag, monitoredItem))
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{
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m_EditComplexValueDlg.UpdateValue(monitoredItem.ResolvedNodeId, monitoredItem.AttributeId, null, itemNotification.Value.Value);
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}
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}
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}
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catch (Exception exception)
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{
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ClientUtils.HandleException(this.Text, exception);
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}
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}
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private void PopupMenu_Opening(object sender, CancelEventArgs e)
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{
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NewMI.Visible = m_state == DisplayState.EditItems;
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EditMI.Enabled = ResultsDV.SelectedRows.Count > 0;
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DeleteMI.Enabled = ResultsDV.SelectedRows.Count > 0;
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ViewValueMI.Visible = m_state == DisplayState.ViewUpdates;
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SetMonitoringModeMI.Visible = m_state != DisplayState.ApplyChanges;
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}
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private void NewMI_Click(object sender, EventArgs e)
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{
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try
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{
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MonitoredItem monitoredItem = null;
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foreach (DataGridViewRow row in ResultsDV.SelectedRows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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monitoredItem = (MonitoredItem)source.Row[0];
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break;
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}
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if (monitoredItem == null)
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{
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monitoredItem = new MonitoredItem(m_subscription.DefaultItem);
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}
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else
|
|
{
|
|
monitoredItem = new MonitoredItem(monitoredItem);
|
|
}
|
|
|
|
if (new EditMonitoredItemDlg().ShowDialog(m_session, monitoredItem, false))
|
|
{
|
|
m_subscription.AddItem(monitoredItem);
|
|
DataRow row = m_dataset.Tables[0].NewRow();
|
|
monitoredItem.Handle = row;
|
|
UpdateRow(row, monitoredItem);
|
|
m_dataset.Tables[0].Rows.Add(row);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void EditMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
MonitoredItem monitoredItem = null;
|
|
|
|
foreach (DataGridViewRow row in ResultsDV.SelectedRows)
|
|
{
|
|
DataRowView source = row.DataBoundItem as DataRowView;
|
|
monitoredItem = (MonitoredItem)source.Row[0];
|
|
break;
|
|
}
|
|
|
|
if (monitoredItem == null)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (new EditMonitoredItemDlg().ShowDialog(m_session, monitoredItem, false))
|
|
{
|
|
DataRow row = (DataRow)monitoredItem.Handle;
|
|
UpdateRow(row, monitoredItem);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void DeleteMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
foreach (DataGridViewRow row in ResultsDV.SelectedRows)
|
|
{
|
|
DataRowView source = row.DataBoundItem as DataRowView;
|
|
MonitoredItem monitoredItem = (MonitoredItem)source.Row[0];
|
|
m_subscription.RemoveItem(monitoredItem);
|
|
source.Row.Delete();
|
|
}
|
|
|
|
m_dataset.AcceptChanges();
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void ViewValueMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
MonitoredItem monitoredItem = null;
|
|
DataValue value = null;
|
|
|
|
foreach (DataGridViewRow row in ResultsDV.SelectedRows)
|
|
{
|
|
DataRowView source = row.DataBoundItem as DataRowView;
|
|
monitoredItem = (MonitoredItem)source.Row[0];
|
|
value = (DataValue)source.Row[11];
|
|
break;
|
|
}
|
|
|
|
if (monitoredItem == null)
|
|
{
|
|
return;
|
|
}
|
|
|
|
m_EditComplexValueDlg = new EditComplexValueDlg();
|
|
m_EditComplexValueDlg.Tag = monitoredItem;
|
|
|
|
m_EditComplexValueDlg.ShowDialog(
|
|
m_session,
|
|
monitoredItem.ResolvedNodeId,
|
|
monitoredItem.AttributeId,
|
|
null,
|
|
value.Value,
|
|
true,
|
|
"View Data Change");
|
|
|
|
m_EditComplexValueDlg = null;
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void ResultsDV_DoubleClick(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
if (m_state == DisplayState.EditItems)
|
|
{
|
|
EditMI_Click(sender, e);
|
|
}
|
|
else
|
|
{
|
|
ViewValueMI_Click(sender, e);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void SetMonitoringModeMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
List<MonitoredItem> monitoredItems = new List<MonitoredItem>();
|
|
|
|
foreach (DataGridViewRow row in ResultsDV.SelectedRows)
|
|
{
|
|
DataRowView source = row.DataBoundItem as DataRowView;
|
|
monitoredItems.Add((MonitoredItem)source.Row[0]);
|
|
}
|
|
|
|
if (monitoredItems.Count == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
MonitoringMode oldMonitoringMode = monitoredItems[0].MonitoringMode;
|
|
MonitoringMode newMonitoringMode = new EditMonitoredItemDlg().ShowDialog(oldMonitoringMode);
|
|
|
|
if (oldMonitoringMode != newMonitoringMode)
|
|
{
|
|
List<MonitoredItem> itemsToModify = new List<MonitoredItem>();
|
|
|
|
foreach (MonitoredItem monitoredItem in monitoredItems)
|
|
{
|
|
DataRow row = (DataRow)monitoredItem.Handle;
|
|
row[5] = newMonitoringMode;
|
|
|
|
if (monitoredItem.Created)
|
|
{
|
|
itemsToModify.Add(monitoredItem);
|
|
continue;
|
|
}
|
|
|
|
monitoredItem.MonitoringMode = newMonitoringMode;
|
|
}
|
|
|
|
if (itemsToModify.Count != 0)
|
|
{
|
|
m_subscription.SetMonitoringMode(newMonitoringMode, itemsToModify);
|
|
}
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
private void Subscription_EditMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
if (new EditSubscriptionDlg().ShowDialog(m_subscription))
|
|
{
|
|
m_subscription.Modify();
|
|
|
|
if (m_subscription.PublishingEnabled != m_subscription.CurrentPublishingEnabled)
|
|
{
|
|
m_subscription.SetPublishingMode(m_subscription.PublishingEnabled);
|
|
}
|
|
|
|
SubscriptionStateTB.Text = GetDisplayString(m_subscription);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|